Talent is a natural aptitude for an activity.
Sometimes a person's physical and psychological make-up naturally aligns with the requirements for a specific task or group of tasks; it's entirely reasonable to state that such a person has talent.
Passion is important - it's what makes your journey seem less like work, and is what will keep you focused regardless of results.
However, the world is (and always will be) an unfair place. Some people have a head-start on the others. These are the people with talent.
Nothing is impossible - and I believe we can always overcome adversity .. but some people will have to fight harder.